Electrical resistance of random rough contacting surfaces using fractal surface modeling

Author

Singer, Michael T. ; Kshonze, Kristopher

Author_Institution

Digital Equipment of Canada Ltd., Kanata, Ont., Canada

fYear

1991

fDate

6-9 Oct. 1991

Firstpage

73

Lastpage

82

Abstract

A method for calculating electrical contact resistance utilizing fractal geometry is described. The base model is a modified version of the model of A. Maujamdar and C.L. Tien (1989), which calculates the bulk resistance of a structure of cumulative multilevel asperities. This updated model is then further extended to include the effect of constriction resistance. Two existing models, given by J.A. Greenwood and J.B.P. Williamson (1966), and M.M. Yovanovich (1981), are reviewed and compared numerically to the proposed model. This comparison shows good agreement among the three approaches.<>

Keywords

contact resistance; electrical contacts; fractals; bulk resistance; constriction resistance; cumulative multilevel asperities; electrical contact resistance; fractal geometry; fractal surface modeling; random rough contacting surfaces; Contacts; Electric resistance; Fractals; Geometry; Rough surfaces; Surface cleaning; Surface resistance; Surface roughness; Surface texture; Thermal resistance;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Contacts, 1991. Proceedings of the Thirty-Seventh IEEE Holm Conference on

Conference_Location

Chicago, IL, USA

Print_ISBN

0-7803-0231-1

Type

conf

DOI

10.1109/HOLM.1991.170806

Filename

170806